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Calculation task allocation method based on three-node cooperation in wireless sensor network

A wireless sensor and sensor node technology, applied in the field of computing task allocation based on three-node cooperation, can solve the problem of high energy consumption

Active Publication Date: 2021-06-11
ANHUI UNIVERSITY
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Problems solved by technology

[0007] In order to solve the defect of high energy consumption caused by performing computing tasks in the sensor network in the prior art, and comprehensively considering communication energy consumption and computing energy consumption, the present invention provides a method that can satisfy the time delay constraints at a lower Calculation task allocation method based on three-node cooperation in wireless sensor networks that consume energy to complete computing tasks

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  • Calculation task allocation method based on three-node cooperation in wireless sensor network
  • Calculation task allocation method based on three-node cooperation in wireless sensor network
  • Calculation task allocation method based on three-node cooperation in wireless sensor network

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Embodiment Construction

[0056] like figure 1 As shown, a computing task assignment method based on three-node cooperation in a wireless sensor network, the method includes the following sequential steps:

[0057] (1) Parameter setting for three-node collaborative computing;

[0058] (2) Determine the optimal task allocation of computing task bits among the three sensor nodes;

[0059] (3) Transmit computing tasks according to task assignment results, and execute computing tasks.

[0060] Described step (1) specifically refers to: as figure 2 As shown, in a wireless sensor network, there are multiple sensor nodes randomly distributed, and each sensor node is equipped with an antenna and has global channel state information. At a certain moment, a sensor node needs to perform an assignable computing task, and the The sensor node is named as the task node USER, the input bit size of the calculation task is L, and the delay constraint is T; the task node UESR selects two nodes with the best surroundi...

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Abstract

The invention relates to a calculation task allocation method based on three-node cooperation in a wireless sensor network. The calculation task allocation method comprises the following steps: setting parameters of three-node cooperation calculation; determining the optimal task allocation for calculating the task bit number among the three sensor nodes; and transmitting the calculation task according to the task distribution result, and executing the calculation task. Compared with the prior art, the method has the advantages that the calculation task can be completed with low energy consumption on the premise of meeting the delay constraint, and the channel condition, the calculation task size and the delay constraint in the sensor network are considered; and single sensor nodes are encouraged to share resources through cooperative computing so as to construct a virtual resource pool, the computing power of the sensor nodes is fully played, redundant resources in the network are mobilized, the sensor nodes in the sensor network are used as a unified whole, the whole computing energy consumption and communication energy consumption are considered, and the cooperative calculation is designed and optimized.

Description

technical field [0001] The invention relates to the technical field of wireless sensor networks, in particular to a calculation task allocation method based on three-node cooperation in a wireless sensor network. Background technique [0002] With mobile edge computing, mobile devices can transfer computing tasks to network edge devices equipped with computing capabilities, such as base stations and wireless access points, instead of completing computing tasks in the core network. This avoids delay fluctuations caused by remote transmission from mobile devices to cloud servers and reduces additional transmission energy. [0003] Advances in wireless transmission technology and embedded processors have enabled mobile edge computing to be applied to wireless sensor networks. It supports the execution of computing tasks on sensor nodes, which increases the response speed to user requests. A wireless sensor network is composed of a large number of small sensor nodes, which col...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W4/38H04W28/16H04W84/18
CPCH04W4/38H04W28/16H04W84/18Y02D30/70
Inventor 查煜坤智慧房小彤
Owner ANHUI UNIVERSITY
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